vertical well

Optimization of the staggered well pattern of mixed horizontal and vertical wells;

水平井与直井交错井网优化方法

Determination of water breakthrough time in horizontal-vertical well pattern;

水平井与直井联合井网见水时间的确定方法

Water breakthrough time in combination well pattern of horizontal and vertical wells;

水平注水井与直井联合井网见水时间研究

In allusion to discrepancy of strata distinguishing features in northern Shaanxi,after analyzed 100 more straight wells and directional cluster wells in Jingbian,Ganquan,Ansai and Yanchang oil-bearing regions,worked out a set of low solid(solid content ≤8%) and solid free water based drilling fluid formulae suitable to the strata.

针对陕北地层特征的差异性,在分析、研究陕北靖边、甘泉、安塞、延长油区等地区100多口直井和定向丛式井的基础上,总结出一套适应该地层特征的低固相(固相含量≤8%)及无固相水基钻井液配方:在施工直井时,配制低固相水基钻井液;在施工定向丛式井时,配制无固相水基钻井液。

A new hinge type bottom hole assembly used in straight well for well inclining prevention and hole straightening was put forward account to the fact that the actual pendulum and packed drill assemblies were not satisfactory for inclining prevention and hole straightening in formations with strong natural deflecting build up capacity.

针对目前钟摆钻具和满眼钻具在大倾角地层、自然造斜力较强地区，其防、纠斜效果不尽人意的现实，提出了一种新型铰接式直井防、纠斜钻具，建立了该钻具组合的力学模型，阐述了其防、纠斜机理。

Based on assumptions of buckling behaviors of coiled tubing in straight deviated wells, the formula of bending stain energy, the formula of work done by the external force and the formula of work done by the weight component have been derived from the basic mechanical theories.

在假设连续油管初始形态为正弦形态,受外载发生屈曲后由正弦形态变成螺旋屈曲形态的基础上,推导得出在斜直井中考虑残余应变的连续油管螺旋屈曲载荷计算新公式。

Theoretical and technical investigation of automatic vertical drilling tools;

自动垂直钻井工具的理论与技术研究

During the drilling of 406mm section, the vertical drilling technique(VertiTrak)pro.

为防斜打快,在Φ406井段使用了贝克休斯垂直钻井技术。

Commonly used taper drills, pendulum drills, full-hole drills, bias-axis drills, rigid drill collar, hinge-connecting drills, and rotary-pounding drills all are part of passive angle-preventing techniques which can not meet demands for vertical drilling in deep, ultra-deep, and complex wells.

垂直钻井是当今世界性钻井难题之一,它具有减少套管层次和套管尺寸、提高机械钻速、减少钻柱事故的优点。

Based on the theory of large spatial deflection of elastic rod,this paper sets up a differential equilibrium equation governing tubulars constrained in inclined wellbores in convected coordinate system.

利用弹性杆的大变形理论,在拖带坐标系下建立了斜直井孔约束下钻柱的平衡微分方程。

Initiation pressure models for hydraulic fracturing of vertical wells in naturally fractured formation;

天然裂缝地层中垂直井水力裂缝起裂压力模型研究

A new productivity prediction equation of vertical wells in plastic fluid type heavy oil reservoirs.;

塑性流体型稠油油藏垂直井产能预测公式

The relationship between the permeability of coal bed and production curve about coal-bed methane vertical wells

煤储层渗透率与煤层气垂直井排采曲线关系

Research of Well Test Interpretation for SAGD Process by Using the Combination of Vertical and Horizontal Wells

直井与水平井组合SAGD试井解释方法研究

SHALLOW HORIZONTAL DRILLING TECHNOLOGY BY USING VERTICAL-WELL RIG IN HENAN OILFIELD

河南油田直井钻机钻浅层水平井钻井技术

The Study of Integral Development Percolation Theory with Horizontal Well and Vertical Well;

水平井与直井整体开发渗流理论研究

ERW Drilling and Completion Technology in Ultra-Shallow Heavy Oil Reservoir with Conventional Vertical Rig

直井钻机钻超浅层稠油大位移水平井钻井完井技术

The 3D Finite Difference Forward Modeling of Multicomponent Induction Log in Vertical Borehole

垂直井多分量感应测井大型三维有限差分模拟

A diphasic flow slip model for production log interpretation in vertical wells

垂直井两相流动生产测井解释滑动模型

Application and Research on Non-Straight Well Trajectory Optimization Design and Decision-making Analysis;

非直井井迹优化设计与决策分析应用研究

Application of Directional Drilling Technology in Coal-bed Methane Vertical Well Construction

定向钻井技术在煤层气垂直井施工中的应用

direct digital laser logger

直接数字激光测井仪

surface pressure read-out

地面直读井底压力计

deviated-well VSP

斜井垂直地震剖面法

well test quicklook

试井资料快速直观解释

true vertical depth log

真垂直深度测井曲线

APPLICATION OF CABLE SRO TEST TECHNOLOGY IN GAS WELL DINA 202

电缆地面直读试井工艺在迪那202井的应用浅析

A Method for Computation of Gas Production from CBM Vertical Fracturing and Horizontal Wells

垂直压裂井和水平井产气量的计算方法

Using Bedrock Freezing for Safe and Rapid Construction of Large-Diameter Shaft

大直径井筒全井基岩冻结法安全快速施工

Application of Baker Hughes Vertical Drilling System to Dawan 1 Well

贝克休斯垂直钻井系统在大湾1井的应用

Well Testing Evaluation of Vertical Fracture in Low Permeability Reservoir

低渗透油藏垂直裂缝井试井评价研究(英文)